Click on map to open large map in new window (Map updated: 11 August 2009)

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.The map is generated through the NBN Gateway using their Interactive Mapping Tool.

This clearly lobed, greenish-brown, foliose epiphyte is a species of well-illuminated trees in parkland or wayside situations. It resembles Physconia grisea in the size of the thallus (about 5-8cm on average) and in the slightly overlapping lobes — much divided and pruinose (icing-sugar-like sprinkling) near the tips, and the marginal granular soredia. In P. enteroxantha, the soredia are coarse, pale brown or yellowy and the medulla is also of a dull yellow colour. This yellowness shows through the lobes giving the whole thallus a rather jaundiced look. When tested the medulla is K + yellow, not K- as in P. grisea. North and east Ireland mainly.